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Finding the Fourth Proportional to 77,056.26, 115,600.05 and 43,792.26

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Solution

The fourth proportional to 77,056.26, 115,600.05 and 43,792.26 is: 65,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,056.26 : 115,600.05 = 43,792.26 : x
  2. Step 2: Convert to fraction form
    77,056.26/115,600.05 = 43,792.26/x
  3. Step 3: Cross multiply
    77,056.26x = 115,600.05 × 43,792.26
  4. Step 4: Simplify right side
    77,056.26x = 5,062,387,445.61
  5. Step 5: Solve for x
    x = 5,062,387,445.61/77,056.26
  6. Step 6: Final answer
    x = 65,697.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.